The second operating system I used (after TrsDos) was CPM on a Z80 development machine. Some time ago I build the Z80 MBC2 board and I played with CPM again. I included a fully working MBC2 emulation in my Z80 IDE program but after using DosBox I got the idea of creating CpmBox. CpmBox is … Continue reading CpmBox a CPM 2.2 emulator